399269037061 has 8 divisors (see below), whose sum is σ = 399656248344. Its totient is φ = 398881916160.

The previous prime is 399269037047. The next prime is 399269037071. The reversal of 399269037061 is 160730962993.

It can be written as a sum of positive squares in 4 ways, for example, as 147986396100 + 251282640961 = 384690^2 + 501281^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 399269037061 - 2¹⁷ = 399268905989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 399269036993 and 399269037011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399269037001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11651625 + ... + 11685841.

It is an arithmetic number, because the mean of its divisors is an integer number (49957031043).

Almost surely, 2^399269037061 is an apocalyptic number.

It is an amenable number.

399269037061 is a deficient number, since it is larger than the sum of its proper divisors (387211283).

399269037061 is a wasteful number, since it uses less digits than its factorization.

399269037061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45191.

The product of its (nonzero) digits is 3306744, while the sum is 55.

The spelling of 399269037061 in words is "three hundred ninety-nine billion, two hundred sixty-nine million, thirty-seven thousand, sixty-one".